/***************************************************************************
+ * Copyright 2012-2013 TXT e-solutions SpA
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 * This work was performed within the IoT_at_Work Project
 * and partially funded by the European Commission's
 * 7th Framework Programme under the contract ICT-257367.
 *
 * Authors:
 *      Salvatore Piccione (TXT e-solutions SpA)
 *
 * Contributors:
 *        Domenico Rotondi (TXT e-solutions SpA)
 **************************************************************************/
package it.txt.ens.core.impl;

import it.txt.ens.core.KeystoreParameters;
import it.txt.ens.core.factory.KeystoreParametersFactory;

import java.io.File;

/**
 * Provides the default implementation of {@code KeystoreParameters}.
 * 
 * @author Salvatore Piccione (TXT e-solutions SpA - salvatore.piccione AT txtgroup.com)
 * @author Domenico Rotondi (TXT e-solutions SpA - domenico.rotondi AT txtgroup.com)
 *
 */
public class BasicKeystoreParameters implements KeystoreParameters {
    
    private final File keystore;
    private final char[] password;
    
    private BasicKeystoreParameters (File keystore, char[] password) {
        if (keystore == null)
            throw new IllegalArgumentException("The keystore file cannot be null");
        if (password == null)
            throw new IllegalArgumentException("The keystore password cannot be null");
        if (password.length < 1)
            throw new IllegalArgumentException("They keystore password cannot be empty");
        
        this.keystore = keystore;
        this.password = password;
    }

    /* (non-Javadoc)
     * @see it.txt.ens.core.KeystoreParameters#getKeystore()
     */
    @Override
    public File getKeystorePath() {
        return keystore;
    }

    /* (non-Javadoc)
     * @see it.txt.ens.core.KeystoreParameters#getPassword()
     */
    @Override
    public char[] getKeystorePassword() {
        return password;
    }
    
    public static class BasicKeystoreParametersFactory implements KeystoreParametersFactory {

        public static final String IMPLEMENTATION_ID = "default";
        
        /* (non-Javadoc)
         * @see it.txt.ens.core.factory.KeystoreParametersFactory#create(java.io.File, char[])
         */
        @Override
        public KeystoreParameters create(File keystore, char[] password) {
            return new BasicKeystoreParameters(keystore, password);
        }
        
    }
}
